Improvement in water-closets



E. PEARSON.

WATER-CLOSET.

N0.174.-,566. Patented March 7,1876

N-PETERs, PHQfD-LITMOGRAPHER, WASHINGTON, 0. c,

UNITED STATES PATENT OFFICE.

EDWARD PEARSON, OF LONDON, ENGLAND.

IMPROVEMENT lN WATER-CLOSETS.

Specification forming part of Letters Patent No. 174,566, dated March 7, 1876; application filed September 24, 1875.

of foul gases or effluvia from the drain or sewer, at the same time preventing any leakage of the water-supply into the usual wood-work of the closet, or into the dwelling-house in which the said closet may be set up.

I use what I term a twin-pan or a twin-basin. The main basin is of oneof the usual well-known forms or shapes, and it is, preferably, molded, or otherwise formed by well-known means, in one piece with its twin-basin. This latter, a

somewhat smaller basin, is, by preference, set

to one side of the main basin, and I shall in the following term it the side basin. This basin communicates in the usual manner at its bottom part with the main basin by means of a pipe adjusted to a suitable fall for the passage of the soil and liquids from the main basin into the said secondary or side basin. The side basinis so proportioned and made of such a size that it can contain the whole of the purging or cleansing gear of the closet. The bottom part of the said basin is shaped to a tubular form at the part where it opens into the drain-piping or other receptable below. The gear for working the closet merely consists, first, of a piston-valve or obturator, ad-

justed into the outlet-pipe of the said basin. This valve is formed with a solid head, preferably of a cylindrical shape, and tightened against the sides of the vertical outlet-pipe by means of an india-rubber ring stretched into a suitable groove formed for its reception on the outside of the piston-valve. The said valve is further provided with a vertical stem fitted to an ordinary handle, and suitably guided in such wise that when the said handle is lifted by the operator all the solid and liquid contents of the side basin flow down and clear out the said basin through the vertical outletpipe;

The water is supplied by a suitable pipingadjusted to the upper part of the twin-basin in the usual manner, being in such wise that the water-jet may clear the main basin and drive or float the solid and liquid matters into the side basin past the tube of communication between the twin-basins. is regulated by means of any ordinary and well-known form of tap for this purpose. The said tap is adjusted by means of a lever and ball-float, the movements of which depend upon the presence or the level of the Water in the side basin. 7

The action of the apparatus is now obvious. On the fall or in the absence of water in the side basin, the float drops down, keeping open the tap until the flow of water into the main basin lifts up the float and closes the tap. When the operator raises the valve, closing up the main outlet, the whole contents of the basin are discharged, the float at once falls, a fresh jet of water rushes in to purge out the main basin, the piston-valve falls back, and so on. Any reflux of foul gases from the sewer is thus prevented, not merely by means of the piston-valve with india-rubber packing, but also by the considerable volume of clean water resting on the said piston-valve, while any leakage or drip merely adds to this protecting body of water. Further, instead of connecting, as is usual, the ordinary water-pipe of the closet with the main drain, I give the same a separate outlet and outflow, or I may also adopt a siphon-trap of the usual kind.

I will now proceed to make my invention more clearly understood by means of drawings.

In the sheet of the same hereunto annexed, Figure 1 is a front elevation of the water-closet apparatus, with twin-basin, piston-valve, and float, 850., complete. Fig. 2 is a plan of the same; Fig. 3, a side elevation of the main pan; and Fig. at the side elevation of the pan containing the gear for working the apparatus.

In all the said figures, A is the main basin, being cast, molded, or otherwise suitably formed in one piece, as shown, with the side basin orreceptacle B. The pipe of communication, with a suitable fall-between the two basins, is indicated by O. The piston-valve, to be worked by the operator, is shown by D, and its stem and handle by d. This pistonvalve bears against a narrow portion of the side basin by b. P is the pipe connected with The inlet of the water the water-supply and jointed to a tap Q, by preference such as the one described, worked by the float F and the lever L. The water-jet may be spread or otherwise directed by any of the well-known methods used in such apparatus. S is a siphon-trap, as is usually employed,f0r relieving the apparatus from any chance undue supply of Water, but the same function may be carried out by any suitable pipe with an outflow separate from the drain.

Fig. 5 indicates to a larger scale the pistonvalve D, which is turned out with a groove and fitted with an india-rubber ring, (1, as shown.

Having thus described all that is necessary 

